Note O - Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended December 31,
	2019			2018
Net loss - basic and diluted	$	(24,522	)	$	(56,466	)
Weighted average number of shares of common stock - basic and diluted		29,654,968			17,930,023
Net loss per share - basic and diluted	$	(0.83	)	$	(3.15	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	December 31,
	2019		2018
Deerfield Convertible Note		1,213,606		1,167,607
2021 Notes		175,336		4,481,182
2019 Notes*		29,625,785		-
Awards under equity incentive plans		5,192,222		3,704,755
Common stock warrants		2,423,077		2,527,763
Series A Convertible Preferred Stock		-		1,112,334
Total securities excluded from the calculation of weighted average number of shares of common stock outstanding		38,630,026		12,993,641